Electric kettle



FIG. 1 is a top plan view of an electric kettle;

FIG. 2 is a front view of an electric kettle;

FIG. 3 is a left side view of an electric kettle;

FIG. 4 is a rear view of an electric kettle; and,

FIG. 5 is a right side view of an electric kettle.

The ornamental design for an electric kettle, as shown and described.